Q15.webp
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Q15.webp

Question: 15
(Choose 1 answer)
(See picture)
A. mean: 1.14; standard deviation: 1.04
B. mean: 1.30; standard deviation: 1.54
C. mean: 1.14; standard deviation: 1.30
D. mean: 1.30; standard deviation: 2.38
E. None of the other choices is correct
In a pizza takeout restaurant, the following prob-
ability distribution was obtained. The random
variable X represents the number of toppings
for a large pizza. Find the mean and standard
deviation for the random variable X.
Χ 0 1 2 3 4
P(X) 0.30 0.40 0.20 0.06 0.04

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